JPS6437773A - Track jump device of disk device - Google Patents

Track jump device of disk device

Info

Publication number
JPS6437773A
JPS6437773A JP62193062A JP19306287A JPS6437773A JP S6437773 A JPS6437773 A JP S6437773A JP 62193062 A JP62193062 A JP 62193062A JP 19306287 A JP19306287 A JP 19306287A JP S6437773 A JPS6437773 A JP S6437773A
Authority
JP
Japan
Prior art keywords
track
successively
track jump
signals
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP62193062A
Other languages
Japanese (ja)
Inventor
Shinichiro Kuwabara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP62193062A priority Critical patent/JPS6437773A/en
Priority to DE3887983T priority patent/DE3887983T2/en
Priority to EP88906880A priority patent/EP0345352B1/en
Priority to US07/332,935 priority patent/US5101390A/en
Priority to AT88906880T priority patent/ATE101939T1/en
Priority to PCT/JP1988/000752 priority patent/WO1989001223A1/en
Priority to KR1019890700547A priority patent/KR910009434B1/en
Publication of JPS6437773A publication Critical patent/JPS6437773A/en
Priority to US07/655,044 priority patent/US5079756A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/08—Track changing or selecting during transducing operation
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/08—Track changing or selecting during transducing operation
    • G11B21/081—Access to indexed tracks or parts of continuous track
    • G11B21/083—Access to indexed tracks or parts of continuous track on discs
    • G11B21/085—Access to indexed tracks or parts of continuous track on discs with track following of accessed part

Landscapes

  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Moving Of Head For Track Selection And Changing (AREA)

Abstract

PURPOSE:To stabilize a track jump by successively switching four signals whose phases concerning track width directions are successively dislocated per 90 deg. at the time of the track jump and using it for tracking control. CONSTITUTION:A tracking error signal STE, an on-track signal SOT whose phase in the track width direction is dislocated by 90 deg. to the tracking error signal STE and whose peak is outputted when it is on a track, the reverse phase signal of the tracking error signal STE and the reverse phase signal of the on-track signal SOT are respectively outputted from circuits 11-13, 21 and 22. The titled device also has a switching means to successively switch and output the above- mentioned four signals from the circuits. Since those four signals are successively switched by this switching means and sent to a tracking control circuit 27, the track jump is executed from one track to the neighboring track. Thus, the stability of the track jump is improved.
JP62193062A 1987-01-08 1987-08-01 Track jump device of disk device Pending JPS6437773A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP62193062A JPS6437773A (en) 1987-08-01 1987-08-01 Track jump device of disk device
DE3887983T DE3887983T2 (en) 1987-08-01 1988-07-27 TRACK JUMPER FOR DISK DEVICE.
EP88906880A EP0345352B1 (en) 1987-08-01 1988-07-27 Track-jump device for a disc device
US07/332,935 US5101390A (en) 1987-08-01 1988-07-27 Track-jump device for a disc drive apparatus
AT88906880T ATE101939T1 (en) 1987-08-01 1988-07-27 TRACK JUMP DEVICE FOR DISK DEVICE.
PCT/JP1988/000752 WO1989001223A1 (en) 1987-08-01 1988-07-27 Track-jump device for a disc device
KR1019890700547A KR910009434B1 (en) 1987-08-01 1988-07-27 Track jumping device of disc
US07/655,044 US5079756A (en) 1987-01-08 1991-02-14 Track-jump device for a disc drive apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62193062A JPS6437773A (en) 1987-08-01 1987-08-01 Track jump device of disk device

Publications (1)

Publication Number Publication Date
JPS6437773A true JPS6437773A (en) 1989-02-08

Family

ID=16301564

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62193062A Pending JPS6437773A (en) 1987-01-08 1987-08-01 Track jump device of disk device

Country Status (6)

Country Link
US (2) US5101390A (en)
EP (1) EP0345352B1 (en)
JP (1) JPS6437773A (en)
KR (1) KR910009434B1 (en)
DE (1) DE3887983T2 (en)
WO (1) WO1989001223A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05189383A (en) * 1991-07-22 1993-07-30 Internatl Business Mach Corp <Ibm> Multiprocessor data processing system and interface device

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5272686A (en) * 1988-11-14 1993-12-21 Ricoh Company, Ltd. Servo signal generator for optical disk driving apparatus
JPH03187027A (en) * 1989-12-15 1991-08-15 Ricoh Co Ltd Tracking servo method
JP2793698B2 (en) * 1990-06-18 1998-09-03 株式会社リコー Focus offset correction method
US5253238A (en) * 1991-07-17 1993-10-12 Nec Corporation Arrangement for producing precise tracking error signal for optical disk device
US5210726A (en) * 1992-02-07 1993-05-11 Maxoptix Corporation Track seek method utilizing an ideal signal
JPH05307845A (en) * 1992-05-01 1993-11-19 Ricoh Co Ltd Jump pulse correction device and optical disk device
KR940011229B1 (en) * 1992-07-07 1994-11-29 현대전자산업 주식회사 Optical disk apparatus operating system
US5978329A (en) 1995-06-07 1999-11-02 Discovision Associates Technique for closed loop servo operation in optical disc tracking control
ATE201277T1 (en) 1995-12-06 2001-06-15 Discovision Ass DEVICE AND METHOD FOR CONTROLLING FOCUSING
US5689485A (en) 1996-04-01 1997-11-18 Discovision Associates Tracking control apparatus and method
KR19980029035A (en) * 1996-10-25 1998-07-15 김영환 Tracking Error Generation Circuit Using Phase Difference Detection Method
TW468159B (en) * 1999-07-08 2001-12-11 Koninkl Philips Electronics Nv Apparatus for and method of scanning an information carrier
JP4475833B2 (en) * 2001-03-02 2010-06-09 日本テキサス・インスツルメンツ株式会社 Mirror detection signal generation circuit
US6680968B2 (en) 2001-05-17 2004-01-20 Qualcomm Incorporated CDMA searcher with time offset compensation

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58205961A (en) * 1982-05-24 1983-12-01 Nippon Columbia Co Ltd Disc player

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4416002A (en) * 1978-04-10 1983-11-15 Hitachi, Ltd. Method and apparatus for high-density recording and reproduction
JPS55132537A (en) * 1979-04-04 1980-10-15 Nippon Telegr & Teleph Corp <Ntt> Track access system
JPS57113463A (en) * 1980-12-29 1982-07-14 Pioneer Video Corp Locked-track resetting device of recorded-information reader
JPS5873023A (en) * 1981-10-27 1983-05-02 Pioneer Electronic Corp Tracking servo signal generator in information reader
JPS59185077A (en) * 1983-04-05 1984-10-20 Pioneer Electronic Corp Tracking servo lock-in device
EP0125051B1 (en) * 1983-04-12 1989-01-04 Victor Company Of Japan, Limited Recording and/or reproducing apparatus with tracking servo-mechanism responsive to fm crosstalk components
JPS6032134A (en) * 1983-07-30 1985-02-19 Ricoh Co Ltd Tracking controller
JPS6063776A (en) * 1983-09-16 1985-04-12 Sanyo Electric Co Ltd Fast forwarding/fast returning mechanism of disk playback device
JPS60119641A (en) * 1983-12-01 1985-06-27 Pioneer Electronic Corp Tracking error signal generating device
JPS61977A (en) * 1984-06-13 1986-01-06 Pioneer Electronic Corp Tracking servo device
JPH0679378B2 (en) * 1986-12-15 1994-10-05 ソニー株式会社 Tracking servo circuit for optical recording / reproducing apparatus
JP2590886B2 (en) * 1987-06-11 1997-03-12 ソニー株式会社 Disk player signal processing circuit
US5283416A (en) * 1992-06-26 1994-02-01 Trw Inc. Laser process monitoring and evaluation
JPH0632134A (en) * 1992-07-13 1994-02-08 Dendou Kogyo Kk Automobile stabilizer and automobile having same stabilizer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58205961A (en) * 1982-05-24 1983-12-01 Nippon Columbia Co Ltd Disc player

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05189383A (en) * 1991-07-22 1993-07-30 Internatl Business Mach Corp <Ibm> Multiprocessor data processing system and interface device

Also Published As

Publication number Publication date
EP0345352B1 (en) 1994-02-23
EP0345352A1 (en) 1989-12-13
KR890702202A (en) 1989-12-23
US5101390A (en) 1992-03-31
WO1989001223A1 (en) 1989-02-09
DE3887983D1 (en) 1994-03-31
KR910009434B1 (en) 1991-11-16
US5079756A (en) 1992-01-07
DE3887983T2 (en) 1994-06-01
EP0345352A4 (en) 1991-10-09

Similar Documents

Publication Publication Date Title
JPS6437773A (en) Track jump device of disk device
EP0367006A3 (en) Device for generating a reference voltage for a switching circuit including a capacitive bootstrap circuit
SE9103833D0 (en) SETTING AND DEVICE TO PROTECT THE PHASE OF A CLOCK SIGNAL, SPECIFICALLY FOR BATCH RECOVERY BY A DIGITAL DATA SIGNAL
EP0354517A3 (en) Center mode control circuit
DE3168073D1 (en) Video signal reproducing apparatus
JPS5733431A (en) Track following device
AU587583B2 (en) Circuit for limiting jitter transients during switching
DE3681842D1 (en) CIRCUIT FOR SWITCHING THE TAPE OF A VOLTAGE CONTROLLED OSCILLATOR.
JPS5216650A (en) Pulse width control circuit
FR2652963B1 (en) ZERO VOLTAGE SWITCHING CIRCUIT.
DE3680237D1 (en) SWITCHING MECHANISM FOR A CIRCUIT BREAKER.
JPS5683188A (en) Reproducing device for video signal
JPS57200969A (en) Jitter correcting circuit of reproducing device for disk-like information recording medium
JPS57181432A (en) Optical type disc reproducer
DE3672018D1 (en) DRIVE FOR HIGH VOLTAGE CIRCUIT BREAKERS.
KR930017119U (en) Channel switching operation circuit for simultaneous recording of 2 tuners on TVCR
DE69232701D1 (en) Electronic circuit for receiving RF modulated digital signals
JPS6459533A (en) Switched capacitor adder
JPS5337005A (en) Switching circuit of tape recorder
JPS6450244A (en) Optical disk recording and reproducing device
JPS5728447A (en) Bipolar signal switching circuit
JPS54123015A (en) Magnetic card processing device
JPS52113709A (en) Track switching control circuit
JPS554742A (en) Integrated circuit for small-size tape recorder
JPS641172A (en) Displacement correcting servo device for pickup element